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Across the two counties, this equates to just 53 per cent of the 93 cameras being able to help uphold the law.

Jason Wakeford of road safety charity Brake said the data was concerning. He said: “Speed cameras are a proven, cost-effective way of reducing deadly collisions and so it’s critical they are operational.

"We would urge they are urgently put back into action.”

While there are many cameras that have been switched off, it is thought that their presence causes drivers to slow down anyway.